A “visa run” is when you leave a country and re-enter to get a fresh visa stamp. It’s a legitimate way to extend your stay, but rules have tightened in recent years. Here’s the current landscape by region:

• Thailand: Land border entries are now limited to 2 per calendar year for visa-exempt travelers. After that, you need a proper visa from a Thai embassy. Air arrivals still get 30-day stamps but repeated air entries get scrutinised. The golden era of unlimited border hops is over.
• Cambodia: Still relaxed. Leave by land or air, re-enter, get a fresh VOA. No limit on entries. A popular visa-run day trip from Bangkok: bus to Poipet, cross the border, turn around and come back. Just make sure you have a passport photo ready.
• Malaysia: 90-day visa-free entry for most nationalities. You can extend once for another 90 days at an immigration office (MYR 100). After that, a short trip to Thailand or Singapore resets your clock.
• Vietnam: 45-day visa-free for many nationalities (up from 15 in 2023). For longer stays, a 90-day eVisa ($25) with single or multiple entry options is the way to go.
• Laos: 30-day VOA, extendable for another 30 days at any immigration office ($2/day overstay penalty is cheap). The friendship bridges to Thailand are open for land crossings.

Crossing a land border is one of the most character-building experiences in slow travel. Some are efficient and clean. Others involve dust, well-fed stray dogs, and a man in a small booth who seems to be making up the rules as he goes:

• Have cash in both currencies: Visa-on-arrival is almost always cash-only — USD is accepted most places, but having the local currency is safer. Small bills are better than large ones.
• Carry passport photos: Many VOAs require 1–2 passport-size photos. The ones available at border crossings are usually bad quality and overpriced. Bring 6 from home and keep them in your passport.
• Don’t pay “processing fees”: If an immigration officer asks for an extra $5, $10, or “coffee money” — you can refuse. They’ll process you eventually. But sometimes, for a small fee (that you didn’t ask for), things move much faster. Decide your own boundary on this.
• Check the border is open: Land borders have strict hours. The Thailand–Laos Friendship Bridge closes at 10 PM. Many Cambodia–Vietnam borders close at 5 PM. Don’t arrive at sunset expecting to cross.
• Scam alerts: The Poipet crossing (Thailand to Cambodia) is notorious for fake “health checks” and “parking fees.” Walk past the touts and head directly to the official immigration building.

Your passport is the single most important item you carry. Treat it accordingly:

• Minimum 6 months validity: Many countries won’t let you enter if your passport expires within 6 months. Check this before booking anything.
• Blank pages: You need at least 2–4 blank pages for visas and stamps. If you’re running low, get extra pages from your embassy before you leave (if your country still offers them — many have stopped).
• Digital backup: Scan every page of your passport and store it in two places — encrypted cloud storage AND a separate device (tablet, second phone). If your passport is stolen, this is worth its weight in gold.
• Embassy registration: Register with your home country’s embassy or consulate in the region you’re travelling. They can help with lost passports, emergencies, and travel advisories.